Rudder for hydroaeroplanes



STUPAR.

RUDDER FOR HYDROAEBQPLANES.

APPLICATION FILED DEC. 10, I919.

Iatenteci Sept. 28 192%.

2 SHEETS-SHEET 1 I h R v J J" 7 v we 0.. W n A v m 1 M. STUPAR.

RUDDER FOR HYDROAEROPLANES.

APPLICATION HLED DEC. 10. i919.

Easente Sept. 28,1920.

2 SHEETSSHEET 1?.

MAX STUEAF GE BUIEFAL'Q, NEW YQRK. AESEGTUER .fLTE'QEtAHAIvi 03?BUFFALQ, NEE J 1,354,353. Specification of Letters Eaten-t.

(Briginal application; fiieei June 25, 1919, Serial 1E0. 308,6}3.

' 1 I 1919'. Serial No. $23,759.

To all whom it may concern;

Be it known that 1, Mix STUPAR, 2. citizen of the United States of iirnerice, residing at Buffalo, in the county 01, Erie and State of NewYork, have invented certain new and useful improvements in R udder forHydrostructure including afloat below the air di rectionztl rudderhaving water planes and a. water rudder to protect and assist the airrudder when the machine is on the water.

A still further object is the provision of a tail structure includinganeir directional rudder in connection with means to protect the same inthe water and additional means to protect the last named means when onland.

These and other objects, as well as the re sultlng advantages of myinvention will he better understood by reference to the so companyingdmwings, torming a port of this specification, and where 1-- Figure 1 isa side eievation oi n proved hydroaerophine,

Fig. 2 is an enizirged side view oi the iower portion of the toilstructure,

Fig. 3 is an enlarged sectional side view of the rudder brace,

Figi is a side view of the rear portion of the fuselage and the tailpost,

Fig. 5 is u rear view thereof, and

Fig. 6 is an enlarged rear elevation of the entire toil structure.

Referring now to these figures end particularly to Fig. l, I have shownit hydrouerophine consisting of u tusciuge 10, wings l1. and mainpontoons 12, and oi which the tail structure includes a stedulirer, seenat 1.2% which supports the elevators l nection at its ccutlzai res-a pm1* s with the upwardly projcc which is provided with 2: depending tube 1Lo ohl y connected by a cross pin wit application filed i iccemoerDivided and this extension 15 of o te" "ost fitting 16 secured to therear end ot l uselage l0.

From Figs. -l and it wil also that the tail post fittinr; 16 has t sideportions epertured ears 1'? in which then lower ends or the stabilizerhrs-aces 18 are detach-ably secured by locking pins of suitableconstruction. These are hingedly connected to the lower surface, of thestehilizer adjacent to its outer rear ends, as as seen in Fig. 6.

The vertical air directional rudder l9 detachahiy hinged to the tailpost fitting by means of the rudder'post' 20,'the latte.

extending downwardly through tail no 22 which i provide at the lower end01": Le air directlonal rudder 19 for pnrioses o greater stability whenafloat. This tuii host 22- preterahiy has overticei fin 23 at its 7forming a water rudder, and has horizo :hns its opposite si e formingwater planes to give greater stecrnge we}:

the tube 21 depends throui as above stated, and. is vertically socketfitting 26 upon the upper sum the rear end on. the rudder hre -e 27 inthe natiu'e of a tail skid, whose forward upper end is hingediyconnected at 28 to the lower surface of the fuselage 10 and whose rearend extendsheneuth and protects the tail tioot 22 and its fins 23 andwhen on hind.

he rear lower end oi the rudder brace 97 is yieldingly supported. inspaced reletion to the float 2 by mean coiled, as seen in lid. 3, evenand conipres hctnpen the he. socket fitting: of the skid It will thus beobvious that he '5 22 will citcctivcly si'ipgioiw tho mil in the waterso as to protect the tionul rudder. end at the sumo 1' the seine in itspassage threw pnrticului'ly hy virtue of the and that its.,.wutcr rudderassist stccrngro way, v

is aiso obvious thut the yieiding skid in addition to bracing the rudderpost. em

l the at an hi."

a the water.

ide pianos Jr, wili nmterinilv coi' peruiiug with the other hurts ini'9li.(llil 105 increased will rudder, a float at the lower portion ofsaid rudder, and rigid planing fins outstanding from the sides of saidfloat in the plane of its axis. for action when on the water.

2. Ina flying machine, an airdire'ctional rudder, a float adjacent tothe lower end of said rudder,'a .watei 'rudder carried by said '4. In aflying machine, an air directional rudder, a float adjacent to the lowerend of said air rudder, a float support and a protecting skid below saidfloat, said skid having a vertically yielding connection with the floatsupport, as described.

5. In a flying-machine, an air rudder having a rudder post provided withan extension depending below the rudder. a float at the lower end of therudder through which said. extension passes, and a protecting skid belowthe float having a yielding connection with said rudder post extension.

In testimony whereof I afiix my signature.

MAX STUPAR.

